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802654

Sigma-Aldrich

Aquivion® D87-25BS

liquid, dispersion, 25% in water, PFSA eq. wt. 870 g/mole SO3H

Synonym(s):

Aquivion® SO3H-form, Tetrafluoroethylene-perfluoro(3-oxa-4-pentenesulfonic acid) copolymer, Ethanesulfonic acid

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About This Item

Linear Formula:
(C4HF7O4S .C2F4)x
UNSPSC Code:
26111700
NACRES:
NA.23

Quality Level

100

form

dispersion
liquid

eq. wt.

870±40 g/mol (SO3H)

composition

25% in water

concentration

>24 % (w/w)

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General description

Aquivion® PFSA dispersions are based on the short-side-chain (SSC) copolymer of Tetrafluoroethylene and the Sulfonyl Fluoride Vinyl Ether (SFVE) CF2=CF2-O-(CF2)2-SO2F industrially produced by Solvay Specialty Polymers. The resulting perfluoropolymer′s functional groups are in their sulfonic acid form, SO3H.

Application

Amongst other Aquivion products, Aquivion® D83-24B can be used as a formulation additive for production of polymer electrolyte fuel cell electrodes, manufacture or repair of cation-exchange membranes, surface coatings of PTFE membranes to improve their wetting behavior or for the development of superacid catalysts. Addition of further film-forming and/or other volatile or non-volatile chemicals is necessary to impart the desired processing and end-product characteristics.

Legal Information

Aquivion is a registered trademark of Syensqo Group

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Articles

Perfluorosulfonic Acid Membranes for Fuel Cell and Electrolyser Applications

Advances in the electrochemical conversion of water to and from hydrogen and oxygen have principally been achieved through the development of new materials and by understanding the mechanisms of the degradation of proton exchange membrane fuel cells (PEMFC) during operation.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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